Why are domestic vaccines so good?—The Story Behind Told by the World’s Largest Hepatitis B Vaccine Manufacturer
Open
the “small green book” recording infant vaccination history, in the column of “hepatitis
B vaccine”—the first vaccine given to a baby, you will find the manufacturer to
be AIM Hissen, which has the full confidence of Ms. Li, a first-time mother.
She has done her homework beforehand, finding that over 80% of neonates in
China are inoculated with hepatitis B vaccine by AIM Hissen, which represents
the best quality recognized by the industry.
Since
the “black swan” incident of Changsheng Biotechnology in 2018, which cast a
shadow on domestic vaccines, the industry has resumed growth in 2019. In 2020,
the lot release of a total of 650 million vaccines has been granted, up 14%
year-on-year, which shows a good growing trend of the industry overall. Today,
the reputation of vaccines “made in China” has spread all over the world. Domestic
vaccines such as COVID-19 vaccine, hepatitis B vaccine, rabies vaccine and
hand-foot-and-mouth disease vaccine have been vastly appreciated by the
international society…
How
did vaccines “made in China” rise so quickly? Why are domestic vaccines so good?
The
answers are pursuit of excellent quality in R&D, conscientious and
meticulous quality control, and craftsmanship spirit of striving for perfect,
which are given by AIM Hissen, a wholly-owned subsidiary of AIM Vaccine Co.,
Ltd., long-time leader of the recombinant hepatitis B vaccine market, and the
world’s largest hepatitis B vaccine manufacturer.
(1)
Enhancing the protective efficacy of domestic vaccine with industry-recognized
optimal technology
Compared to vaccines made with
advanced technologies of the world, are the vaccines independently developed
and made in China really good?
The
answer given by Gao Fu, academician of the Chinese Academy of Sciences and
Director of the Chinese Center for Disease Control and Prevention, is positive.
Gao once appealed to the public that Chinese vaccines are one of the best
vaccines in the world; don’t evade problems when they present themselves or
lose confidence in our own vaccines.
Of
this, the R&D process of AIM Hissen’s recombinant hepatitis B vaccine (hansenula
polymorpha) is the best epitome.
In
the 1990s, when the situation of hepatitis B prevention and control was grim in
China due to technology blockage imposed by foreign countries, AIM Hissen
volunteered to participate in the R&D of hematogenous hepatitis B vaccine,
and completed the task in only two years.
Since
the early 21st Century, China has been striving with all its strength to get
rid of the title of “big hepatitis B nation.” With years of technological
innovation, AIM Hissen took the initiative to undertake the national “863
program”—the R&D of recombinant hepatitis B vaccine (hansenula polymorpha).
As a world-leading gene engineering expression platform with a high technical
threshold, at that time hansenula polymorpha was still unexplored territory in
the industrialization of vaccines for human use in China.
After
fighting for over 1800 days and nights (almost 5 years), in 2004, the first recombinant
hepatitis B vaccine (hansenula polymorpha) independently researched, developed and
made in China passed the testing of NIFDC and obtained approval for market
sales. Clinical trials showed that it achieved a blocking rate of 97.36% of
hepatitis B transmission from HBsAg-positive and HBeAG-positive mother to
infant, an average antibody positive rate of 99%, and a high immune response
level of an average antibody titer of over 1000mIU/ml, with an immune effect
better than imported product of the same dosage and even domestic product of
several times of its dosage.
In
2013, Han Xun Rui An (name of hepatitis B vaccine)—the 20μg/0.5ml hepatitis B vaccine for adults independently researched and developed by AIM
Hissen—successfully filled in the gap of 20μg hepatitis B vaccine of small
volume. Compared to existing 20μg/1.0ml products in the world, it has reduced
both product volume and impurity content by half yet stills has higher safety.
Facts
have proven the actual strength of the domestic hepatitis B vaccine “made by
AIM Hissen.”
According
to the data of China Insights Consultancy, AIM Hissen is not the only domestic
supplier of hepatitis B vaccine using hansenula polymorpha for antigen
presentation. Its technology is characterized by high productivity, high purity
of antigen presentation and low cost. Based on the lot release data of 2020,
AIM Hissen occupies 59.4% of the domestic market share.
(2)
Eliminating the crisis of trust in domestic vaccine quality with 100% pass rate
After
e the “black swan” incident of Changsheng Biotechnology, domestic vaccine
enterprises have been faced with enhanced administrative and legal supervision,
covering various links including R&D, production, circulation, sales and
after-sales safety, which has fundamentally eliminated the crisis of trust in
domestic vaccine quality.
According
to the supervision requirements, vaccine manufacturers should establish perfect
quality control and product safety traceability system, implement risk
reporting system, and guarantee the quality of vaccine products, while
regulatory authorities reinforce on-site inspection of manufacturers.
Besides,
the Chinese Pharmacopoeia has more vaccine assay items than the European
Pharmacopoeia, and the majority of vaccines have to pass higher testing
standards than the EU stadnards. The Chinese supervision laws and regulations
and standards for vaccines are as much rigorous as their European and American
counterparts.
In
an ecology of high regulatory pressure and fierce industry competition, vaccine
manufacturers have come to realize that product quality is the lifeblood for
development. For instance, strictly following national regulatory and industry
standards, AIM Hissen’s recombinant hepatitis B vaccine has always maintained a
pass rate of 100% in the lot release quality audit by the NIFDC since its
approval.
Furthermore,
AIM Hissen has continued to improve its quality standard to become a
well-deserved industry benchmark.
In
2010, as an important reference standard for domestic recombinant hepatitis B
vaccine (hansenula polymorpha), the quality standard for AIM Hissen’s Han Xun
Rui An is included in the Chinese Pharmacopoeia (2010 edition) almost word for
word. With continuous innovation of product technology, Han Xun Rui An has
promoted the improvement of multiple national stadnards for domestic hepatitis
B vaccine including low mercury, mercury-free and impurity reduction in
succession.
(3)
Establishing a new image of domestic vaccine with craftsmanship spirit
Domestic
vaccine is a pillar of the nation.
Establishing
a pillar of the nation with craftsmanship spirit and establishing a new image
of domestic vaccine have become the consensus of increasingly more vaccine
manufacturers. Take AIM Hissen as an example, it always keeps in mind the
mission of “producing good vaccines for the health of the people,” and remains
devoted to the R&D and production of vaccines with craftsmanship spirit.
According to the Production Manager of AIM Hissen, one of its process characteristics is the polishing purification step, which is aimed at further purifying cell culture fluid to derive stock solution with high-purity HBsAg. Different from the conventional adjuvant process, the patented “in situ absorption process” of AIM Hissen directly produces aluminium hydroxide adjuvant while diluting and mixing HBsAg, and the adjuvant absorbs antigens in the process of formation. Characterize by a high antigen absorption rate, this in situ absorption process prolongs the reaction time of human antigens and enhances the stimulation of immune response.